Examples with ITextEditorExtension2 org.eclipse.ui.texteditor.ITextEditorExtension2 used on opensource projects

Example 1 with ITextEditorExtension2

use of org.eclipse.ui.texteditor.ITextEditorExtension2 in project eclipse.platform.text by eclipse.

the class LineNumberColumn method getQuickDiffPreference.

/**
 * Returns whether quick diff info should be visible upon opening an editor
 * according to the preference store settings.
 *
 * @return <code>true</code> if the line numbers should be visible
 */
private boolean getQuickDiffPreference() {
    if (fForwarder != null)
        return fForwarder.isQuickDiffEnabled();
    IPreferenceStore store = getPreferenceStore();
    boolean setting = store != null ? store.getBoolean(AbstractDecoratedTextEditorPreferenceConstants.QUICK_DIFF_ALWAYS_ON) : false;
    if (!setting)
        return false;
    boolean modifiable;
    ITextEditor editor = getEditor();
    if (editor instanceof ITextEditorExtension2) {
        ITextEditorExtension2 ext = (ITextEditorExtension2) editor;
        modifiable = ext.isEditorInputModifiable();
    } else if (editor instanceof ITextEditorExtension) {
        ITextEditorExtension ext = (ITextEditorExtension) editor;
        modifiable = ext.isEditorInputReadOnly();
    } else if (editor != null) {
        modifiable = editor.isEditable();
    } else {
        modifiable = true;
    }
    return modifiable;
}